Horological Meandering

So this is a follow-up post about my UG White Shadow with Cal 74 with more pictures and some background information. When I received the watch it shortly worked with a new Battery (had to figure out a replacement for the obsolete mercury cell with similar...  

I love to see vintage watches rejuvenated and enjoyed. Regards Kev.

What is the oscillator frequency?

The frequency is already the modern " Industry standard" - 32768 Hz.

NT

Hey, I like this watch and caliber, I just get one but I don't know the battery model to put inside, could you help me? Thanks a lot

The original 388 cell is obsolete but it works with a new SR731/V329 battery. But be careful, it has to be installed with the plus pole down, like this: You MUST NOT touch the other parts of the movement other than the screws or the clamp holding down the...  

Waoww thanks, I'm so happy to get all your advice, it helps me a lot! I will change the battery as soon as, and enjoy to wear my watch. Thanks again, you're my hero!

Wear it in good health, these are very rare watches in working condition.

Hopefully someday, the full story of quartz watches from 1969 to (say) 2019 will be told. Fifty years. To complement Doensen's magisterial work, which covers 1950 to 1983. UG in-house started with the cal. 74 of 1975 and apparently concluded with the cal.... 

For extra information?

I would be grateful. The link from chmandaue contains some very interresting information, also about Cal 74 but it somehow remains a bit of a mystery, despite its historical significance.

NT